and wether or not its moving enough air to even make a difference, guess the real way it to mount a thermometer up there and leave the fan off for a few days to soak up the heat, then record the temp, then kick the fan on for a few days and see if the temp drops any…...
I've actually put a Hobo temperature monitor in the attic. Problem is, the weather changes enough day/day to skew the results. Can't get consistent days with fan off all week, or fan on all week. FL weather is almost always changing. Hot & sunny, hot & cloudy, raining, cloudy, sunny, could all happen in a single day. Bottom line, the attic is STILL too hot. Needs more airflow.
I wish I could say it does without hesitation, but honestly I can't. It IS moving hot air out of the attic, and when standing on the roof, it feels like a significant amount coming out of the vent. However, my attic is still almost as hot (a degree or two cooler), so it's not effective enough. I will put a gable end vent on the other end of the house, and see if the cross ventilation helps.
@2manytoyz123 yea, what i was told by some roof companies and home depot was that you need to place 2 fans in the attic, one fan on one side to pull in cooler air from outside and the second fan on the other end of the attic to push the hot air out of the attic… this way there are 2 fans working to help remove the hot air…
I have never spoke to anyone that has this setup so i cannot comment on it… Most only have that one fan like yours is but i guess its how much air that fan is moving
I believe it. Even with the fan running full speed, move back a few feet inside the attic, there's no airflow I can actually feel. The vinyl soffets have tiny slits, and the ridge vent is completely ineffective. Just dead air in the attic. Until I put in another gable end vent to allow airflow into the attic at the other end, a fan at one end just doesn't do it. Might try the push/pull idea, thanks.
@2manytoyz123 yea i think the push pull is the only way it will work cause like u said, you went back a few feet and didnt feel any air movement which means that fan is only moving so much air in that immediate area… which does no good for the rest of the attic, So maybe stronger fans and the push pull configuration may be the only option to effectively drop the temps down to make a difference…
Great project. I was wondering what fan you used for the project? I have the 15W panel from harbor freight but just not sure what kind of a fan to use.
I like the conversion you did. I have been looking around for a suitable fan and this looke like it. I already have the solar panels from Haror Freight.
Do I need Battery for this?
SuperDesi45 7 hours ago
and wether or not its moving enough air to even make a difference, guess the real way it to mount a thermometer up there and leave the fan off for a few days to soak up the heat, then record the temp, then kick the fan on for a few days and see if the temp drops any…...
01Commenter10 8 months ago
@01Commenter10
I've actually put a Hobo temperature monitor in the attic. Problem is, the weather changes enough day/day to skew the results. Can't get consistent days with fan off all week, or fan on all week. FL weather is almost always changing. Hot & sunny, hot & cloudy, raining, cloudy, sunny, could all happen in a single day. Bottom line, the attic is STILL too hot. Needs more airflow.
2manytoyz123 8 months ago
The real question is, does it pull out enough heat from the attic so that the a/c does not have to work as hard..??
01Commenter10 8 months ago
@01Commenter10
I wish I could say it does without hesitation, but honestly I can't. It IS moving hot air out of the attic, and when standing on the roof, it feels like a significant amount coming out of the vent. However, my attic is still almost as hot (a degree or two cooler), so it's not effective enough. I will put a gable end vent on the other end of the house, and see if the cross ventilation helps.
2manytoyz123 8 months ago
@2manytoyz123 yea, what i was told by some roof companies and home depot was that you need to place 2 fans in the attic, one fan on one side to pull in cooler air from outside and the second fan on the other end of the attic to push the hot air out of the attic… this way there are 2 fans working to help remove the hot air…
I have never spoke to anyone that has this setup so i cannot comment on it… Most only have that one fan like yours is but i guess its how much air that fan is moving
01Commenter10 8 months ago
@01Commenter10
I believe it. Even with the fan running full speed, move back a few feet inside the attic, there's no airflow I can actually feel. The vinyl soffets have tiny slits, and the ridge vent is completely ineffective. Just dead air in the attic. Until I put in another gable end vent to allow airflow into the attic at the other end, a fan at one end just doesn't do it. Might try the push/pull idea, thanks.
2manytoyz123 8 months ago
@2manytoyz123 yea i think the push pull is the only way it will work cause like u said, you went back a few feet and didnt feel any air movement which means that fan is only moving so much air in that immediate area… which does no good for the rest of the attic, So maybe stronger fans and the push pull configuration may be the only option to effectively drop the temps down to make a difference…
01Commenter10 8 months ago
what kind of fan did you buy? i got a 15 watt 12 volt panel from habor freight.
mao2878 9 months ago
@mao2878
The brand is Ozark Trail, sold in the Walmart camping section. Presently about $12.
2manytoyz123 9 months ago
Great project. I was wondering what fan you used for the project? I have the 15W panel from harbor freight but just not sure what kind of a fan to use.
mothershipryan 9 months ago
I like the conversion you did. I have been looking around for a suitable fan and this looke like it. I already have the solar panels from Haror Freight.
1foxtrot70 1 year ago
Nice!
Thumbs UP.
WORRO01 1 year ago